Wiring Diagram Line And Load Disconnect

The hot wires each carry 120 volts and are different phases.

Wiring diagram line and load disconnect. 200 amp disconnect wiring diagram. If the disconnect is added to an existing ac unit it should be within reach of the already existing cable so only a short cable is needed to bridge the switch to the ac unit. Many people can understand and understand schematics referred to as label or line diagrams. Wiring diagrams help technicians to determine the way the controls are wired to the system.

This type of diagram is similar to choosing a photograph with the parts and wires all connected up. 3 way switch wiring diagram with line and load in the same switch box. The service panel also has line and load connections the line feeds the main breaker in the panel while the individual branch circuit breakers can be considered the load with respect to the. The electrical wiring to the disconnect is fed from the load side or outgoing side of the electric meter.

The white wire between switches is not being used as a neutral. It leaves the meter from the load side and then feeds the line side of a disconnect or electrical service panel. For example a conventional wall switch which is a single pole single throw switch works equally well whether you attach the live circuit wire line to the top brass terminal or the bottom because the switch has only two positions open or closed the terminal connections are directional on a double throw switch on the. The result is that neither device receives the entire 120 v necessary for proper operation.

The load side is the side that is connected to what you are supplying power to. How to wire a disconnect. Line and load will be clearly labeled on the back of the gfci outlet and often times the load side will be covered with a piece of tape. 14 one load per line two loads must not be connected in series on one line of a line diagram.

If the two loads are connected in series then the voltage between l1 and l2 must divide across both loads when s1 is closed. With the breaker turned off the wires can be disconnected and the cable removed from the e lectrical compartment of the. The incoming feed from the utility company comes into the line side of an electric meter. 4 wire 3 phase line markings.

In the above diagram the white wire must be re identified as a hot wire at each switch location. Wiring diagram book a1 15 b1 b2 16 18 b3 a2 b1 b3 15 supply voltage 16 18 l m h 2 levels b2 l1 f u 1 460 v f u 2 l2 l3 gnd h1 h3 h2 h4 f u 3 x1a f u 4 f u 5 x2a r power on optional x1 x2115 v 230 v h1 h3 h2 h4 optional connection electrostatically shielded transformer f u 6 off on m l1 l2 1 2. Load orange x2. Distinguishing between line and load isn t always necessary.

Step 2 prepare to wire the disconnect switch. If the current draw is 48 amps you will need a disconnect rated for 60 amps. There are two hot wires and a neutral wire. The side of the meter that receives incoming power from the utility service lines is called the line side.

If the current draw is 28 amps you will need a disconnect rated for 30 amps. Refer to the diagram above about wiring gfci receptacles for additional help.